Firearm muzzle brake



FIG. 1 is a perspective view of a firearm muzzle brake showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left view thereof;

FIG. 5 is a right view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a perspective view of the firearm muzzle brake of a second embodiment.

The surface(s) or portion(s) of the article shown in broken lines being for illustrative purposes only and forming no part of the claimed design. 

CLAIM The ornamental design for a firearm muzzle brake, as shown and described. 